This little Deringer is not European made and even though unmarked, appears to have the characteristics of one made by R. P. Bruff.  The barrel length, to include breech, is 2 3/8 inches in length with an overall length of 5 3/4 inches.  It is sound, with no repairs but a little rusty with numerous minor dings and abrasions in the wood.  It is about .41 caliber and is almost a Peanut.  It is German silver mounted with German silver bands at the breech and engraved lock, hammer, breech and trigger guard.  The rest of the inlays are plain.  SOLD!!