Drawing of japanese Navy WW2 Bombs, based on various US documents. Most notably:
<ul><li>USNTMJ Report O-23 „JAPANESE BOMBS“, 1946</li>
<li>Navy Department, BUREAU OF ORDNANCE „JAPANESE EXPLOSIVE ORDNANCE - Vol. 1 - ORDNANCE PAMPHLET 1667“ , 14. Juni 1946</li></ul>
Type 2 No. 50 Model 1 is based on the USNTMJ report, since the OP 1667 information on the look of this bomb is inconclusive.
<a href="//commons.wikimedia.org/wiki/User:Alexpl" title="User:Alexpl">Alexpl</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>