The 37 slip on Hood fits snugly over and then past the 35.5 screw filters I have and sits on the lens as it would with no filter attached.
I've got the voiglander Hood and a yellow Voitlander Filter both slip on.
An Agfa 35.5 Hood (not so keen on it as it's hard plastic and I always worried it's going to get broken).
35.5 screw filters = yellow (light and darker), orange, green and a couple of uv.
Series six filters I've got that fit are red,green,yellow.
I'm on the look out for a nice 35.5 screw red filter
Btw there is a 35mm colour Ambion lens on eBay right now, £12 buy it now I think.