The top gun is a Bufalo (one "f") made by Gabilondo & Cia. (later makers of the Llama line of handguns) for Beristain & Cia. of Elgoibar, Spain, hence the "BC" on the grips.
The other pistol I can't identify. The Bufalo was of moderately decent quality at least compared with the general run of Spanish pistols of that type. Neither gun has any real value, though, especially in that condition.
Jim