
The marks on the miniature shovel are correct for Amsterdam, circa 1725, maker's mark Bust, unidentified.

The ash sweeper, town Amsterdam conjoined year letter D for 1738. Maker's mark deformed perhaps JB conjoined for Jan Borduur, registered 1731-1766, productive toymaker.
The miniature pliers

In my opinion the marks are spurious, not correct for an 18th century Amsterdam miniature.
The maker's mark a tree(?) not correct for Pieter Somerwil I
For Pieter van Somerwil I his mark see:
viewtopic.php?t=62379
Peter.
Source;
A. Aardewerk Antiquair Juwelier Tall and small antique Dutch silver miniatures