Correct Fuze for US 81 mm Mortar round

[Cannoncocker155mm]

Hi All,
Can somone tell me what the correct fuze number is for the US WW2 81mm Mortar HE round ???

Thanks

 

[HAZORD]

M52 was the most common, and then the M53.

There are a number of postings here on BOCN that describe and explain those fuzes.