Fukien Copper Cash
It's quite uncommon to find chopmarks on copper or brass coins. These large Fukien province cash coins c. 1853–1855, cast at the Fuzhou Mint, were emergency copper-alloy issues produced during the fiscal and administrative strain of the Taiping Rebellion era (1850–1864). These oversized pieces bear either the Xianfeng Tongbao (咸豐通寶) or Xianfeng Zhongbao (咸豐重寶) inscription on the obverse, naming the reigning emperor, Xianfeng (r. 1851–1861), with Manchu script on the reverse identifying the Fuzhou mint (ᠪᠣᠣ ᡶᡠ, romanized Boo-Foo, representing 寶福). Their unusually large size and weight was intended to reinforce value at a time when copper shortages, debasement, and counterfeiting had eroded confidence in the more familiar small-denomination cash. Surviving examples show considerable variation in weight, calligraphy, and casting quality, reflecting localized and hurried manufacture. We occasionally find these large cash coins with chopmarks, atypical for base-metal coinage, where such marks are far more commonly associated with silver trade coins, generally understood as local validation / acceptance punches applied by merchants, military pay offices, or regional authorities to confirm circulation or assign an agreed accounting value. The variety of chopmarks found on these coins is small (often you'll see the same mark between two of them) which might signal extremely local circulation or application by a small pool of shroffs.
This set isn't meant to be exhaustive, rather to show the (lack of) variety seen in the chopmarks, and to show a totally different kind of host coinage with chopmarks than we usually see them on.
20 Cash - 通 豐 (Tong Bao)
20 Cash - 重 豐 (Zhong Bao)
20 Cash - 重 豐 (Zhong Bao) with characters for weight on rim (Ex. Murphy)
50 Cash - 通 豐 (Tong Bao)
100 Cash - 通 豐 (Tong Bao)
100 Cash - 重 豐 (Zhong Bao)
午 - wǔ - the seventh of the twelve earthly branches, the south (obsolete), the horse (obsolete)
Similar to 㐊 - unknown chopmark - unknown meaning
Possibly 丅 - (ancient version of 下) xià - below, down, under
大 - dà - big, great, large
和 - hé - harmony, peace, and
裕 - yù - abundant, rich, plentiful
天 - tiān - heaven, sky, day
上 - shàng - above, up, top
日 - rì - sun, day
恰 - qià - exactly, appropriate, suitable
生 - shēng - life, birth, grow
祥 - xiáng - good luck, good omen, auspicious
宝 - bǎo - treasure, precious
永 - yǒng - eternal, forever
安 - ān - peace, safe, calm
丌 - jī - base for supporting the object above, a surname, also Japanese Hyōgai kanji for 'table'
Unknown chopmark
万 - wàn - ten thousand, myriad, also Japanese Kanji for various, many, all
下 - xià - below, down, under, (丅 is the simplified or ancient version)
乆 - (variant of 久) jiǔ - long time, old story, a surname
六 - liù - six
吉 - jí - auspicious, lucky
大 - dà - big, great, large
正 - zhèng - correct, straight, upright