2 Chinese Stamps To Identify

Hereunder 2 chinese stamps:
The 1st one (5 dollars) seems to be Scott #97 (imperial chinese post) but it is imperforated! And I cannot find it in the catalogue.
But maybe it is a forgery?
The 2nd one (4c) is also imperial chinese post but it doesn't look as the Scot#89.
Do you have an idea which Scott No it can be?
Thank you

I think you've identified these properly. There are notes in Scotts at the end of the listing.
Referring to the 4¢ dragon it reads, 'The inner circular frames and outer frames of Nos. 86-91 differ for each denomination.' Yours just doesn't look exactly like the 1/2¢ shown. They vary.
As to the imperf $5 stamp the note reads 'No.97 imperforate was not regularly issued.' Which I think we can take to mean '...but they do exist'. Sometimes imperforate stamps can also be printers waste, inferior prints discarded by the printer, but sold to collectors.