What do factory markings on the inside of DUPLO pieces mean?

Question

In addition to LEGO and DUPLO names embossed inside the pieces of early DUPLO figures, there are a variety of number formats (one to three digits, some hyphenated) and in the case of 1977, the year.

Is there an explanation for what these numbers mean - and can they then be associated with a particular set and/or year?

Similar question: http://bricks.stackexchange.com/questions/1399/what-does-imprinted-information-inside-bricks-mean?rq=1 — Kramii, May 01 '14 at 09:41

score -2 · Answer 1 · edited Aug 08 '14 at 09:40

-2

The markings are the Batch number and element id.

edited Aug 08 '14 at 09:40

Zhaph - Ben Duguid

19,551
6
78
151

answered Aug 08 '14 at 00:49

user3896

1

2

You should add more details to your answer like describing the format and your references – pcantin Aug 08 '14 at 01:09
Woo, War Kings! (I blame and thank autocorrect) – gev Aug 08 '14 at 07:28
I think they are Mould Ids rather than "batch" numbers specifically... – Zhaph - Ben Duguid Aug 08 '14 at 09:45

What do factory markings on the inside of DUPLO pieces mean?

1 Answers1