This is an antique and very collectable mechanical calculator made in cardboard. This is a rare and interesting tool which includes tables with different measurements. It was created by Julio Brisgelski. It is written in Spanish as you can see in the picutre. This is an antique item, pattented on 1942. It has signs of being used and is in good conditions. It measures 22 x 7 cm. This is a really collectable item! It was made in Argentina. This is an antique item and is being sold as is. 

THIS IS BEING SOLD As Is. THIS MEANS THAT THE ITEM IS BEING SOLD AS WE PURCHASED IT. WE HAVE NOT MODIFY IT IN ANY WAY NOR RESTORED IT. WHEN WE FIND PIECES LIKE THIS WE LIKE TO PRESERVE THEM THE WAY THEY ARE SO WE ARE SELLING IT IN THE SAME EXACT CONDITIONS AS WE FOUND IT. 

PLEASE DO NOT HESITATE ASKING US IF YOU HAVE ANY QUESTIONS.
WE COMBINE SHIPMENTS UPON REQUEST. 
IF YOU HAVE ANY ISSUES REGARDING THIS TRANSACTION WE ARE WILLING TO SOLVE ANY PROBLEM WITH OUR CUSTOMERS. PLEASE CONTACT US BEFORE LEAVING NEGATIVE FEEDBACK.