Found 2 биржи where Gasspas is traded for ETH. According to the data on 17 May the most optimal price to exchange GASS for ETH is Ξ0 for 1 Gasspas. This rate is fixed at Bilaxy at the maximum trading volume of the pair GASS/ETH - 15.7 ETH.
The maximum daily trading volume is observed in the GASS/WETH trading pair at Uniswap (v2) and reaches Ξ 18.73 (521.12% of the exchange's total trading volumes) at the price Ξ 0 per 1 GASS.
The minimum price to buy GASS for ETH is 0 - on the exchange Bilaxy.