tin fish

“I jumped up on the tubes again to follow our little tin fish on its swim,” he resumed.

He had scooped a hole in the sand, lined it with clay, filled it with sea-water, and stocked it with his shining tin fish.

"Now Fritz can use his tin-fish as often as he likes," he thought gleefully.

And that's no Bullsheveki, fur you know derie when one of them tin fish strikes a transport, yer jest as well let your voice fall.

"Oh, easily," said Conyers, as he raised his eyes to where the little tin fish hung glittering above him.