Lake City 59 ammo.

[USGI]

Just found this link in one of Charlie's (painter-guy) old posts today - pretty interesting on the subject of the one flash hole Berdan primed cases! - Bob

https://www.oldammo.com/march06.htm

Information

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[browningautorifle]

pretty interesting on the subject of the one flash hole Berdan primed cases

Yep, good reading.

[Matt_X]

Since your bringing this up, there are current sellers advertising the Chinese LC 52 for sale as real Lake City 52.

Fortunately the seller shows the box., which removes all doubt.
LAKE CITY .30 CARBINE FREE SHIPPING on orders over $250 | Maryland Munitions | Finksburg | 21048

and also some advertized on GB recently reported https://www.gunbroker.com/item/966624075

LC 52 - The Carbine Collector's Club - Page 2