La ricerca nel web di monete della tipologia di figura ha dato luogo ai seguenti risultati:

1. https://www.cngcoins.com/Coin.aspx?CoinID=314047 376, Lot: 401. Estimate $100. Sold for $65. Anonymous. 135-125 BC. Æ Semis (21.5mm, 7.55g, 2h). Rome mint. Laureate head of Saturn right; S (mark of value) to left / Prow of galley right; S (mark of value) to right. Crawford 272/1; Sydenham –; RBW 1090 (not the illustrated coin). VF, green and brown patina, lightly tooled. From the RBW Collection.
2. vcoins 47.00US$ 42.38€. Rates for: 01/12/20 Attribution: CR 272/1, Sear 887. Date: 135-125 AD. Obverse: Head of Saturn right. Reverse: Prow right. Size: 23.81mm. Weight: 8g. Description: A well worn bronze with pitting in the patina.
3. https://www.numisbids.com/n.php?p=lot&sid=3636&lot=197 Dr. Busso Peus Nachf. e-Auction 10 18 Jan 2020 Lot 197 Estimate: 60 EUR. Lot unsold Republikanische Prägungen Anonym Semis 135/125 v. Chr., Rom. Kopf des Saturn / Prora. Cr. 272, 1; Syd. -. 11.60 g; Dunkelgrüne Patina Selten Schön. Ex Sammlung eines Frankfurter Römerfreundes.
4. https://www.artemideaste.com/auction/view/446/90 Lot 90: Anonymous series. AE Semis, 135-125 B.C. Obv. Head of Saturn right; behind, S. Rev. Prow right; before, S(?); below, ROMA. Cr. 272/1 (?). AE. 6.61g. RR. About VF. The crude style portrait and the not canonical style of prow have led to the suggestion that this specimen may be a contemporary imitative issue. Base d'asta 40€.
5. https://www.biddr.com/auctions/nac/browse?a=51&l=38722 Auction 92/2 Auction information Lot 1605 Bidding Price realized --. Starting price 160 CHF. Estimate 200 CHF. Description: AN INTERESTING COLLECTION OF ROMAN REPUBLICAN COINS FORMED BY AN ENGLISH AMATEUR SCHOLAR. Semis 135-125, AE 8.56g. Laureate head of Saturn r.; behind, S. Rev. Prow r, before S and below ROMA. RBW 1090. Cf. McCabe ”Anonymous Bronzes” pp.207-208, type L1. Crawford 272/1. Rare. In exceptional condition for the issue. Brown tone and extremely fine. Although the prow on this coin is not in typical Crawford 272 style, the obverse style and the design characteristics of the prow along with its normal weight for the issue make it likely that this is a official issue but by a different die engraver.
6. cngcoins Anonymous. 135-125 BC. Æ Semis (25mm, 12.27g, 5h). Rome mint. Electronic Auction 480 Lot: 465. Estimated: $ 100. Roman Republican, Bronze. Sold For $ 100. Anonymous. 135-125 BC. Rome mint. Laureate head of Saturn right; S (mark of value) to left / Prow of galley right; S (mark of value) to right. Cf. Crawford 272/1; Sydenham –; cf. RBW 1090. Cleaned brown surfaces. VF. From the Raintree Collection. Closing Date and Time: 11 November 2020 at 12:34:40 ET.
7. https://www.cngcoins.com/Coin.aspx?CoinID=317359 380, Lot: 470. Estimate $100. Sold for $150. Anonymous. 135-125 BC. Æ Semis (22.5mm, 6.22g, 11h). Rome mint. Laureate head of Saturn right; S (mark of value) to left / Prow of galley right; S (mark of value) to right. Crawford 272/1; Sydenham –; RBW 1090. Near VF, porous brown surfaces. Rare. From the RBW Collection. Ex Goodman Collection (Triton I, 2 December 1997), lot 1111.
8. https://media.biddr.com/media/img/auction_lots/438/438151.l.jpg https://www.numismatik-naumann.at/auktion/#!/auction/lot?a=438&l=234&p=3 Auktion 74, Los 234 Zuschlag 40 EUR 1 Gebot. Startpreis 40 EUR. Schätzpreis 50 EUR Beschreibung ANONYMOUS. Ae Semis (135-125 BC). Rome. Obv: Laureate head of Saturn right; S (mark of value) to left. Rev: ROMA. Prow of galley right; S (mark of value) to right. Crawford 272/1. Condition: Very fine. Weight: 6.58g. Diameter: 22mm.
9. sixbid.com Starting price: 80 CHF. Estimate: 100 CHF. Result: Unsold. Lot 1086. The Roman Republic Struck Coinage Anonymous issue Semis 135-125, Æ 9.60g. Laureate head of Saturn r.; behind, S. Rev. Prow r.; before, S and below, ROMA. Sydenham –. Crawford 272/1. Rare. Brown tone and about very fine Privately purchased from Richard Schaefer in 1992.
10. https://www.flickr.com/photos/36294246@N03/17125282889 272/1 anonymous Semis. Saturn, Prow with peaked deckhouse. AM#1563-88, 23mm Exceptional condition. Semis. 125BC. 8.79g. Rome mint. anonymous. Crawford 272/01 Anonymous. Obverse: hd Saturn r, S, in style of coins of 125BC. Reverse: prow r with peaked deckhouse, S before, ROMA below. Scarce.
    

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Note:

(1) Il semisse di figura è una moneta di bronzo realizzata per coniazione, appartenente alla serie cosiddetta "anonima" perché priva di segni distintivi. Il peso standard della serie, è basato sull'asse cosiddetto "semunciale". L'asse "semunciale" ha il peso che nella serie librale apparteneva alla semuncia (un ventiquattresimo di libbra, cioè 327,168:24=13,63g). Quindi con l'inflazione il nome "asse" viene mantenuto ma il peso è ridotto ad un ventiquattresimo. Raccolgo in tabella le caratteristiche fisiche dei semissi della tipologia di figura reperiti nel web: