Hand-Painted Watercolor Postcard Of Grapes (or Olives?) antique railroad lock It’s unmarked and I’ve searched

It’s unmarked and I’ve searched but have not found another like it

1" across at opening

10 3/4" with handle

This striking box was beautifully constructed and remains absolutely radiant

Hand-Painted Watercolor Postcard Of Grapes (or Olives?) antique railroad lock It’s unmarked and I’ve searchedAt first I thought this lovely hand painted postcard depicted a bunch of green olives still on the branch, but now the structure of the leaves makes me think they may be grapes. Either way, a really lovely little watercolor (or perhaps gouache) painting of a sumptuous little bounty! 3 1 2" x 5 1 2", with richly saturated color on a warm cream stock. British and early 20th century I believe.