My similar coins are referenced Hartill 22.324-326
22.324: The Z
part of qian 乾 looks like a hook
22.325: The Z
part of qian 乾 looks like a Z
22.326: The
head of the tong 通 is triangular
The coin shown has a Z
part which looks like a Z and a regular closed
head of the tong, similar to 22.325,
but there is another more similar coin (
Hartill Qing Cash, 21.30) with narrow bei (This is the rectangular
part of the bao), which fits best.
(Pictures below show Z qian, hook qian and a regular (not narrow) "Bei" segment)