Dear[Mr.Harrison]:
Ournewfactorywillbecommencingproductionon[April10]andweshouldliketoinvite[youandyourwife]tobepresentatacelebrationtomarktheoccasion.
Asyouwillappreciatethisisanimportantmilestoneforthisorganization,andistheresultofcontinueddemandforourproducts,bothathomeandoverseas.Weareinvitingallthoseindividualsandtrustthatyouwillpayusthecomplimentsofaccepting.
Pleaseconfirmthatyouwillbeabletoattendbyadvisingusofyourtime——wecanarrangeforyoutobemet.Allarrangementsforyourstay[overnightonApril10]will,ofcourse,bemadebyusatourexpense.
Yoursfaithfully,
XXX