Some more details
The maker's mark a horn in a heart shaped shield.
The maker's mark a horn in a heart shaped shield for; Arnoldus van Geffen, born 1700, registered in Amsterdam 1728 until 1769 (died) and the uncle of Johannes Adrianus van Geffen (1766-died before 1798, maker's mark a horn under crown). Both uncle and nephew were productive makers of silver toys/miniatures.
Town mark Amsterdam, conjoined year letter G for 1766, so called kleine keur, silver minimum 833/1000 or higher.
ZII mark for Waarborg/Assay office in Joure, opened in 2002 (835/000 fineness) for objects which are submitted in finished condition, which consequently could then not be assayed as thoroughly 1953-present.
Weight 38 gram, L 4,5 cm, W 2,5 cm, H 5,7 cm top whip, 4,5 cm top of boy's hat
Below a photo from the book of; A. Aardewerk, Tall and small antique Dutch silver miniatures, page 233 # 526 Rocking horse, Amsterdam 1790 by Johannes Adrianus van Geffen, H 6 cm W 39 gr.
Peter.
Source; Karel A. Citroen, Amsterdamse Zilversmeden en hun merken. L.B. Gans, Premsela & Hamburger goud-en zilvermerken van Voet. A. Aardewerk, Tall and small antique Dutch silver miniatures
