Document gEYKkXOm7mzMKjpn8O54arBda

PLAINTIFFS l EXHIBIT I ACS-50 Karch U, IS63 Armstrong Contracting & Supply Corporation 120 IZorth Tfia< Strnt .T nrnurt Pannaylvralx Attn: Kr* Gaorgs follaar* Xa&a&ar Purchasing DepsrcoAC Gantlsacnl Tfca attached revised Merchandising Policial and Price lists are being mailed to all of our custoe&ars today* Tha cover lac tara to each explain the change* vhlch mill taka place in. our policy and pricing, affective Kay 12, 1963* Please accept this latter as notlca to you of revision of our pries * true tare for your AreatTong IX Insulation* affective Kay 12* 1963* Vary truly yours* RPC/lu Attaclsssa Ls 1* 7* Casbla, Salat Ksoagar Pabc Indus trial Products Division bcc: 7. A.Kordstroo. Agreement Pile, Vault Pile