Here’s an American clock with a strike on the hour and one strike on the half hour.

“Built in Kentucky 1885, Bought by James + H[K?], ST RALAMB. [?] For $1-50. Dallas HA MA.” I’m assuming that refers to the case.

I removed the movement and put clamps on the springs to let the power down.

I opened it up and studied the mechanism. The wheel on the left in the above photo, removed from the movement, is the critical one for the strike mechanism. The deeper slots stop the strike train and so the distance between the gaps indicate how many times it should strike. There always two deep slots so that it strikes once on the half hour.

I took special note of the placement of the arms and linkages.

Then I cleaned the parts in an ultrasonic cleaner.

Polished all the pivots in the watchmakers lathe.

I didn’t take many photos, but then I reassembled it and did some tweaks on the escapement to get it ticking nicely.