Help with carb ID Please

I have a set of what looks like 26mm Mikuni's and am unsure what they came off of. They have 102.5 main jets and 15 pilot jets, The code on them is 450-30, what is the most confusing is that they have both, air mixture screws on the side and fuel mixture screws on the bottom. Can anybody help with the ID on these carbs, what are they originally off of?

I am pretty sure they came off a Suzuki - most likely a GS1000. It is my understanding that the vm26s used on the Suzuki' s all had both and air and pilot screw