Here's a quick-and-dirty list of MLs I know of that were recatalogued as  
CLs, in no particular order. I'm sure there were more--there seems to be a 
big  clump of them in the ML-4800s. Try Canfield Guide and old Schwanns. 
Cheers,  Rich
Dvořák “New World” Symphony. Ormandy, PO - ML-4023. CL-731. 
Offenbach  Gaîté parisienne, Chopin Les Sylphides. Ormandy, PO - ML-4895. 
Rimsky-Korsakov Scheherazade. Ormandy, PO - ML-4888. CL-850. 
“Romantic  Melodies of Tchaikovsky.” Ormandy, PO - ML-4955. CL-707. 
Tchaikovsky  Capriccio italien; Rimsky-Korsakov Capriccio espagnol. 
Ormandy, PO - ML-4856.  CL-707. 
Music of Waldteufel and Lehár. Ormandy, PO - ML-4893.  CL-849
Music of J. Strauss, Jr. Ormandy, PO - ML-4686. CL-839
Music of  Richard Rodgers and Jerome Kern. Kostalanetz, Phila. Orch. “Pops”
 - ML-4514.  CL-806. 
Tchaikovsky Piano Concerto No. 1. Oscar Levant, Ormandy, PO -   ML-4883. 
Liszt: Hungarian Rhapsodies Nos. 1 and 2; Grieg: Peer Gynt  Suite No. 1. 
Ormandy, PO -  ML-4132. CL-722. Sibelius: Symphony No. 2.  Ormandy, PO 
ML-4131. CL-850
Gershwin: Concerto in F, Rhapsody in Blue,  American in Paris. Levant, 
Ormandy, Kostelanetz. ML-4879. CL-700.  
Ippolitov-Ivanov Caucasian Sketches; Borodin Polovtsian Dances, In the  
Steppes. Mitropoulos, NYP. ML 4815. CL-751.
In a message dated 8/25/2013 12:16:25 P.M. Central Daylight Time,  
[log in to unmask] writes:

Hi  Rich,
Definitely interested.   Thanks!

-----Original Message-----
From: Association for  Recorded Sound Discussion List
[mailto:[log in to unmask]]On Behalf  Of Richard A. Kaplan
Sent: Sunday, August 25, 2013 2:36 AM
To:  [log in to unmask]
Subject: Re: [ARSCLIST] Columbia LPs -  recataloged as CL series

There were also a number of classical LPs  in the ML series that were  
reissued in the CL series (presumably as  "light classics." Are you 
interested in   


In a message dated 8/24/2013 11:56:28 P.M.  Central Daylight Time,  
[log in to unmask]  writes:

I've  noticed a number of COLUMBIA LPs of non-classical  music which 
originally were  released
in the ML series, or other  early series, later reissued in the CL  series. 

Has anyone  compiled a list of these re-catalogued items  ???
Is not, please send  any examples you know of.

for  example:
BIX BEIDERBECKE STORY -  GL 507 508 509  reissued as CL 844  845 846
Marais &  Miranda  FL 9542 as CL 6225
Martyn Green  Gilbert &  Sullivan  ML 4643 became CL 832

I'm assuming these  releases  are identical.

A different situation, 2-LP set reissued as 3  LP's  in the CL series:
BENNY GOODMAN Carnegie Hall Jazz  Concert  OSL  160 (OL 4341-OL4342) 
reedited as CL 814 815   816

Best wishes,   Thomas.