Wikisource has a copy of 躋春臺 (or "Mounting Spring Platform" as I've seen it crudely translated before) online.
It is missing rare characters though. Here is one example:
《四川方言词源》has the entry 𥕢门 which gives historical literary usage from 躋春臺:
清刘省三《跻春台》卷一《东瓜女》： “将近𥕢门， 正逢东瓜女抱儿在外。”
But if we look at wikisource's page for 東瓜女 it only reads:
There are tons of txt / epub / text turned pdf versions floating all over the web, but they all contain the same errors.
Are there any scanned copies of this original text in pdf format anywhere? Including the four volumes of 躋春臺 (元集, 亨集, 利集, 貞集)?