Three old Snake puzzles

The large brown one is probably the oldest (about 1980), with an instruction booklet labeled "Politoys" from Gyula, Hungary. The snake puzzle is also labeled "Action GT" with stickers on both ends of the snake. The movement is good, and it comes with the original case (which has a VAT label on it). I see copies of this labeled as "Rubik's Snake" on the internet, but I don't know if Rubik had any association with the snake puzzle.

The red, medium sized one is made of fairly thick plastic. The action is good. I could find no markings on it.

The small blue one is stiff to turn. Also no obvious labels. 

Package weighs 1 lb. 10 oz. US postage is $15.70, international is $28.55.

In the US, I prefer personal checks. Paypal is acceptable, friends and family preferred but not mandatory.