I went through and found every PoS block on the last 10 pages of http://sigilexplorer.com
Any blocks in between the ones mentioned are PoW blocks. You can check each block for yourself.

Block #14879: Didn't go to a dev wallet
Block #14877: Didn't go to a dev wallet
Block #14875: Didn't go to a dev wallet
Block #14870: Didn't go to a dev wallet
Block #14867: Didn't go to a dev wallet
Block #14863: Went to a dev wallet
Block #14861: Didn't go to a dev wallet
Block #14860: Didn't go to a dev wallet
Block #14856: Didn't go to a dev wallet
Block #14853: Went to a dev wallet
Block #14852: Didn't go to a dev wallet
Block #14848: Didn't go to a dev wallet
Block #14847: Didn't go to a dev wallet
Block #14846: Didn't go to a dev wallet
Block #14845: Didn't go to a dev wallet
Block #14844: Didn't go to a dev wallet
Block #14836: Didn't go to a dev wallet
Block #14825: Didn't go to a dev wallet
Block #14822: Didn't go to a dev wallet
Block #14821: Didn't go to a dev wallet
Block #14818: Didn't go to a dev wallet
Block #14815: Didn't go to a dev wallet
Block #14812: Didn't go to a dev wallet
Block #14810: Didn't go to a dev wallet

Edit:

Block #14903: http://www.sigilexplorer.com/tx/9c74e9b37e65c7e391b58ca82f5a3db067235b079e3f51763e943f91a2d3c139
A guy found a PoS block with only 50 SGL.