I just recently started collecting tricycles, I've acquired the 3 of these over the past 2 weeks, The first one is a is a Mercury, I'm guessing a 39 model based on the World's Fair Bicycles, I've never seen a tricycle like this? The second is a Velo King, not sure what year, The 3rd I got today, it's a 20" like nothing I've seen before, can anyone help me with this or provide any pics of what this should look like restored? I think it's got great lines! Any ideas on rarity of these or any values? Thanks for any help....