There is no makers's name, unless "T.A, & C." is the maker. Warnant Model 1879 is identified here:

http://criminology-museum.uoa.gr/en/...llectionPage=0

http://www.classifiedantiquearmsonli...P1030436-1.jpg

https://www.pinterest.com/pin/492088696758882940/

I measured the bore. It is just over.500. The cylinder holds 5 rounds.

These are the only markings, a crown (looks like a British crown proof mark), "T.A. & C." and "500".

10.jpg

I have not been able to find any "T.A. & C." in Boothroyd's list of British Gunmakers.