This is an older set of Shimano Altus cranks plus bottom bracket. As you can see from the pics, theres a lot of surface rust on the steel parts, but nothing that won't clean right up. Other than that the cranks and chainrings seem to be in good shape. And even the BB seems to spin well. The crankarm bolts are just hand tight, so you will be able to unbolt them easily.
Chainrings are 24t-34t-42t
These came off of an old Trek 820 old school mountain bike.
FC- CT93