Rare antique sand clock XVIIIth C.

rare antique sand clock XVIIIth C.
rare antique sand clock XVIIIth C.
rare antique sand clock XVIIIth C.
rare antique sand clock XVIIIth C.
rare antique sand clock XVIIIth C.
rare antique sand clock XVIIIth C.
rare antique sand clock XVIIIth C.
rare antique sand clock XVIIIth C.
rare antique sand clock XVIIIth C.
rare antique sand clock XVIIIth C.
rare antique sand clock XVIIIth C.
rare antique sand clock XVIIIth C.

Rare Hourglass A Three Flasks XVIII. Museum"Very rare hourglass with three brass vials engraved with floral scenes and stamped with horses.The models with three vials are very little known, generally they are with two or four vials.It is dated 1763.It has a trap for a possible change of vial.A maker's mark on the top of the hourglass with two crossed keys.