Show IOU D Pictures that had been hidden tor many e year rs were d by workmen an ancient building In Prague Czechoslovakia wall walle ot thO were decorated with an sim- sim simIlar rim Ilar to t that hat on pottery and When tho coating of oC dut duat and were remo e removed the th ort art work ork clearly shown hown The Tho picture h d been n worked In plaster an on Imi Imitation tation of ot bai being by laying a coat ot o whit o er one 0 ot black and then remo r nough ot the lh upper to the black In the d lr d le and They ar pr I x rv d a tl |