Aberdeen Prov Grnd unidentified aerial event — July 1957

On or during July 1957, at or near Aberdeen Prov Grnd, Maryland, United States, the source reports the following sequence: 7A5922 TO RJEDEN/COMDR ADC ENT AFB COLO SPRINGS COLO FRM: LZEPT/CCDR AIR TECH INTEL CENTER WRIGHT PATTERSON AFB OHIO -DIR OF INTELLIGENCE HQ USAF WASH DC UNCLASSIFIED/ACDC 7-573 PD SUBJECT: UFOB (13 (A) CHANGING FROM SMALL TO LARGE (B) SMALL (C) YELLOW (D) ONE (E) NEGATIVE (F) HALO AROUND LIGHT TOP (G) NONE (H) NONE (I) HALO AROUND PD (J) GAS CURIOUS (CHOPPY) (K) HIGH (C) HIGH (D) SLOW TIGHT CIRCULAR TURN (E) LEFT SCENE BEFORE DISAPPEARANCE (F) THREE HOURS PD (G) (A) NAKED EYE (B) NONE (C) 29/2822 JUL 1957 (D) 2/0232 JULY 1957 (E) HEIGHT PD (F) 3,5327 N - 76 23 W (G) PK 3527 PD (G) (A) NONE (E) MJACR U.S. ARMY: ABERDEEN PROVINC GROUND, MARYLAND: VERY GOOD PD (C) (A) CLEAR (B) (C) (CALM) (D) 350-300 (E) 330-45 (F) 270-25 (G) NONE (C) UNLIMITED (D) VERY GOOD (E) NONE PAGE TWO RJEPMM SB (A) NONE PD (B) (A) NONE (C) NONE PD (10) NONE PD (11) NO KNOWN TRAFFIC PD (12) (A) BALTIMORE GOC (B) CURIOSITY PD (12) (A) NONE (B) NONE PD (14) REMARKS: SUBJECT STATED HE HAD SIGHTED THREE OR MORE OBJECTS BUT THIS IS FIRST ONE HE HAS REPORTED .