[Erik]

Had a reply from Alfa in Italy

World wide sales are has follows -

105.62 type “osso di seppia”.



1968 – 259

1969 – 1146





105.62 type “coda tronca”



1970 – 1426

1971 – 1211

1972 – 7

So not so rare, never mind I still love her

I don't know if the same apply to the US (10562) version, but the Euro (10557) version changed the prefix chassis no. ciffers from 141xxxx to 182xxxx when the Round Tail gave way for the Kamm Tail 1750, which incidently became the 1970 MY (1st. produced late '69).
Btw, Fusi says that 4039 10557s were produced, but counting the numbers it turns out to only 3036!!!!????
Erik

 

[Erik]

Re: Cylinder head marks 3 and 4. Do you know what the difference is?
I have a Euro Spider 1750, build 1970 (Sept. 2). I has an exchange engine (probably from a German engine rebuilder) with mark no. 4.
Erik

 

[Erik]

According to Wille R, Swedish Spider guro, these are the figures for 1750 Spiders - Round Tail and Kamm Tail:
- - Rondtail 1967-1970, Kamm tail 1969-1974
1967 854 LHD 1st May 67 Ch No 105.57.141.0001-0854
1968 18 LHD Ch. 0855-0872?
- 209 RHD 1st UK = Mar 68 Ch No 105.58.147.0001-0209
259 USA 1st USA = 68 Ch No 105.62.148.0001-0259
1969 914 LHD last roundtail 69 Ch No 105.57.141.1787
Grand total 1750 Veloce roundtails 3254
1st Kamm-tail -69 Ch No 105.57.1820001 Ch. 0873?-1787
- 285 RHD Ch. 0210-0495
1146 USA Ch. 0260-1405
1970 657 LHD Ch. 1788-2444
1 RHD last UK roundtail Jul 70 Ch No 105.58.1470674 Ch. 0495-0497
- 1426 USA Ch. 1406-2831
1971 596 LHD last = 105.57.1413036 Ch. 2445-3036
- 138 RHD 1st UK Kamm-tail = Apr 71 Ch No 105.58.1835001
last UK = Feb 72 Ch No 105.58.1235197 Ch. 0498-0632
- 1211 USA Ch. 2832-4042
1972 7 USA last USA = 72 Ch No 105.62.1484050
- - Ch. 4043-4050
TOTAL 4039 LHD
633 RHD
4049 USA
See more here: http://hem.passagen.se/veloce/buy1.htm
However, there are some mistakes like the total numbers of LHD models, the stated total is about 1000 units more than the count and total of each year production.
Re the 105.62 US version, it is said/written that no 1970 model year were build (due to updating the Spica injection system), so the 1426 build in 1970 probably all were 1971 model year; maybe build toward the end of 1970. My own 1970 105.57 LHD euro has no. 178 of the 657 build and was build on September 2 1970. 105.57 didn't have Spica, so maybe just due to unsold stock of Round Tail models.
Many in Europe considder 1970 Spiders being Round Tails - in the UK the Kamm Tails models wasn't introduced until 1971.
Erik

 

[Erik]

If this is "AR01500*08884*" then it is probably a 2000 iniezione from the 1970's. I do not have enough data to be any more precise than that.

The person who stamped the number appears to have stamped the digit "5" a second time rather than switching back to the "0" number stamp. Since the prefix is not a part of the actual serial number, it was probably felt that there was no need to cancel the mistaken strike more thoroughly ... since it would seem that there was no such "Tipo" as "AR01550"?

You can read more about Alfa Nord engine no. here Engine numbers
However, your no. doesn't seem to corresponde to the type nos.

 

[Erik]

Tubult's scans of chassis and engine numbers ends 1972. All 2000 cm3 engines built late 1971 and 1972 have type number 01500.XXXX