Very unusual moulds, No. 1 is metal, 2 & 3 are wooden and hand carved. Circa. 19th Century. 
They would have possibly have been used to make picture frame or coving embellishments. 
A wonderfully decorative piece! They each look gorgeous on a shelf alone or part of a vignette or simply laid on the coffee table as a conversation piece. 
** Priced Individually 
Measurements 
1 = 11.5 x 11.5 x 2cm thick
2 = 11.5 x 17.5 x 2.5cm thick
3 = 14.5 x 15 x 2cm thick