L2 (L1A) Multiple visa stampings

[MSR21]

The L2 Visa stamp validity on my passport is XX Apr 2017 to XX Mar 2022 with a PED XX Jul 2018 however when the original petition expired I visited the consulate with a approved first extension petition and they issued another L2 Visa stamp Validity July 2018 to Aug 2020 with PED Aug 2020 (I guess i shouldnt have gone again for stamping anyways). Now that i have an approved L2 second extension petition can i use the first visa stamping along with the approved petition to travel?

[Libra_14]

Unless the earlier visa is not marked "Cancelled", you can use that to re-enter into USA.

Hope the primary L1 holder is maintaining his status till now (same employer, same job etc).