Show pony express 4 9 to vernal t yes mail delivery collectors will have a heyday when the sweetwater county sheriffs mounted posse makes its desert mountain pony express run from green river to vernal utah on june 13 the pon pen pouch to be carried by 25 ciders running in relay will contain not not only letters from sweetwater county dignitaries to the utah town but also will carry 1 cial letters ot of stamp collectors bearing a special por par express cachet placed on thiv tn envelope after its arrival lit in the hands of the posse A handling charge of 10 cents an envelope in addition to the regular postage will be made airmail weight stationery will be required because only a few bundled letters can bo be carried sam leckie captain of the posse said it may be necessary id d limit mhd ali number thus making the cachet more anoro valuable the letters must be received by the posse not hot later than june 10 but may be sent any time lime prior to that date mr lockle said |