noun
A heavy iron block used in metalworking, on which metal is hammered and shaped.
鍛冶屋が金敷きの上で鉄を打っている。
The blacksmith is hammering iron on the anvil.
Compound of 金 (kana, 'metal') and 敷き (shiki, 'spreading' or 'laying'), referring to a metal block laid down for hammering. The reading かな is an older form for metal.