1989-12-18 / 1400 / 1100 / 20 gram / T300/800; "Auf dem Briefkasten"
K282 applies: 150 per 5g. 20g needs 800 + 4 x 150 = 1400 but only 1100 were applied. Deficiency 300, correctly shown as T followed by "deficiency over standard weight surface letter rate". Ignored in USA! Was it sent surface (it’s adequately franked for that)?