Can anyone identify this hallmark

1

20230222_181429
20230222_1814291920×2560 121 KB

20230222_184628
20230222_1846281920×1440 419 KB

20230222_181448
20230222_1814481920×2560 128 KB

2

I think it might be Koch and Bergfeld

3

I cannot confirm or deny this identification but I should point out that this is an electroplate mark. “90” indicates the amount of silver used to plate a standard set of knives and forks (12 of each).

Phil

4

Found the reference to Koch & Bergfeld: Silverplate Marks K - Online Encyclopedia of Silver Marks, Hallmarks & Makers' Marks