Source-era label restrictions are not current law. Osborne foundation dates conflict. Toro Albala's alleged oldest-wine year convention must not be turned into whiskey minimum age. A balancing choice with wine does not establish a whiskey additive method.
Full-source review; concise synthesis of the specified sections, not a verbatim passage or independent factual certification.
Cesar Florido's different moscatel routes, Puerto's Colosia/Grant/Osborne wines and Montilla's Alvear/Barquero/Toro Albala wines broaden the comparison. Montilla PX can yield unfortified dry wine; it is not Sherry DO. Small PX additions to old dry wines are described as a producer balancing choice.
187
170
Chipiona/Cesar Florido170–172; Puerto173–180; Montilla181–187.
Checked against the supplied PDF after all338 text positions and page images were reviewed. Map22 and spectrum315 enlarged. Locators use PDF positions. Publication-specific factual/rights checks remain separate.
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Located paraphrase; no direct quotation.
Evidence
Cesar Florido's different moscatel routes, Puerto's Colosia/Grant/Osborne wines and Montilla's Alvear/Barquero/Toro Albala wines broaden the comparison. Montilla PX can yield unfortified dry wine; it is not Sherry DO. Small PX additions to old dry wines are described as a producer balancing choice.
Location and context
Source No access. PDF 170–187; Chipiona/Cesar Florido170–172; Puerto173–180; Montilla181–187.
Locators refer to this supplied PDF, not print pagination or ebook index anchors.
Annotation
Source-era label restrictions are not current law. Osborne foundation dates conflict. Toro Albala's alleged oldest-wine year convention must not be turned into whiskey minimum age. A balancing choice with wine does not establish a whiskey additive method.
Literature Note 
Verification checklist
Verified means source fidelity, not factual certification. Native presentation settings remain unverified.