However, it's essential to note that this estimate is highly dependent on various factors that can influence the value, such as:
1. Condition: The physical condition of the volumes, including the presence of tears, stains, or overall wear, will significantly impact their value. Well-preserved and pristine volumes will fetch higher prices.
2. Completeness: A complete run implies that all 49 volumes are present and that each volume contains all the issues published for that respective year. A complete and unbroken run is more valuable than a partial set.
3. Provenance: If the collection has a notable history or provenance, such as being owned by a famous collector or having a connection to the publication's staff, it can enhance its value.
4. Rarity and Demand: The scarcity and demand for complete sets of Picture Post magazines play a significant role in determining their market value. If the set is in high demand among collectors and there is limited availability, its value increases accordingly.
5. Market Conditions: The overall fluctuations and trends in the collectibles market, as well as the specific demand for vintage magazines and periodicals, can influence the value over time.
To obtain a precise valuation, it's recommended to consult with reputable book dealers, auction houses, or experts specializing in vintage magazines and collectibles. They can provide a more accurate assessment based on the specific condition and attributes of the complete set.